How to determine whether a given Linux is 32 bit or 64 bit?

Question

How to determine whether a given Linux is 32 bit or 64 bit?

When I type uname -a, it gives the following output.

Linux mars 2.6.9-67.0.15.ELsmp #1 SMP Tue Apr 22 13:50:33 EDT 2008 i686 i686 i386 GNU/Linux

How might I know from this that the given OS is 32 or 64 bit?

This is helpful when composing configure scripts, for instance: what architecture am I building for?

shell linux

3 years ago by Bharatgxwzm

2 Answers

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**rahul07** · Answer 1 · 2021-06-01T08:45:18

rahul07

Try uname -m. Which is short of uname --machine and it outputs:



x86_64 ==> 64-bit kernel

i686   ==> 32-bit kernel

3 years ago

**kshitijrana14** · Answer 2 · 2021-06-02T14:15:01

kshitijrana14

The command

$ arch    

is equivalent to

$ uname -m

*
but is twice as fast to type

3 years ago

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How to determine whether a given Linux is 32 bit or 64 bit?

2 Answers

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